Question

A and B can do a given piece of work in 8 days; B and C can do the same work in 12 days and A,B,C complete it in 6 days. In how many days can A and C finish it ?

Answer 1

Answer:

Step-by-step explanation:

A&B = 8 days

B&C = 12 days

A,B&C = 6 days

GCD of 8, 12 & 6 is 24

Imagine its 24 pieces of work

A&B would do 3pieces per day

In ratio of 2pieces:1piece

B&C do 2 pieces per day in 1:1

A,B&C do 4 pieces per day in 2:1:1

Therefore A:C everyday = 2 pieces:1 piece

For 24 pieces = 8days